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1949
ANTARCTIC PHOTOGRAPHY
21
and rust if the camera is not completely dismantled and every part dried each time this occurs. It is very doubtful if a person in his right mind would stay out in subzero temperatures in his home environment and take pictures for very long at a time. The chances are he would prepare his cameras, then dash out and spend a few minutes taking pictures, and return to warmer quarters. This could not possibly be considered as a good cold-weather test for cameras. It must be remembered that a soldier, sailor, or marine who is fighting in subzero temperatures cannot be expected to find a warm building either to defrost his camera or himself.
PREPARATION OF CAMERAS
All cameras were completely delubricated and relubricated with cold-weather lubricants and tested in cold chambers. Close tolerances of working parts were made larger where possible. Yet failures occurred on all motion picture cameras from plus 15 degrees Fahrenheit to minus 27 degrees Fahrenheit.
It is quite apparent now that the reason our cameras passed cold tests in the laboratory and would not function properly in the field in much warmer temperatures, is that they were not completely chilled during laboratory tests. Cameras should remain in cold chambers, with film loaded until thoroughly chilled. As a general practice, most cold tests are only for a few hours. The total time to chill a camera thoroughly depends upon the size and mass of metal
Fig. 2 — The author skiing to camera location with a heavy motion picture camera and storage battery. This illustrates the necessity for a more portable camera for cold-weather operations. It also indicates that all handheld cameras had frozen up and failed.